The One EVH Tone I Cannot Figure Out!!! 

Signal Chain Charvel San Dimas/Guitar of choice - Fractal AX8 - Focusrite Scarlett 4i4 No post EQ.

its funny that its honestly just us that care about the tone. The audience has no clue. I know tho that we play better if we love the tone and such . Pete Thorn seems to have figured out EVH tone tho. I still Rock the original Atomic Amplifire 3 button, if its good enough for Satchal Its good enough for me. To bad they are non existent as a company service wise.

Brother you have to watch the video of VH playing “Not Enough” live on The David Letterman Show. Great performance and Eddie nails the solo!

Edward used his old Marshall for a lot of the tracks on Balance. To my ears thats it. A JMP Super Lead, non master volume full up. No modern Marshall sounds like it. You must learn about output tube gain. NO pedals. No modeler no digital amp will ever get that sound. I have a pair of Germino Lead 55 Lv which is a replica of what Edward used.

I'm definitely not an expert, but that to me sounds like a chorus, or a flanger, or a mix of both. That's definitely up Leon Todd's alley. He recently made a video about how to thicken your tone, there might be some clues on how to get the tone

I'm pretty much whatever the opposite of an expert is but here's my thoughts... I don't think you're going to get that tone at the speakers or at the line out of your effects processor but at the end of the mix buss on your console. I'd try splitting the guitar into a dry cab and into a Leslie / effected cab (or the virtual / digital equivalent). On the mix console push the dry channel fader up high and nudge the Leslie effect channel fader up just enough to be barely noticeable. This might solve the "wah wah wah" problem. Of course all the usual recording magic plays a part too (compression, delay, EQ, reverb, etc.) The other obvious thing to talk about is "Eddy's hands" but what also deserves credit are his ears. He's one of the greats for a reason. Good luck on the chase!

On the axe fx I would start with using chorus dimension , there is 1-4 for the dimension, use it with the Lesli and work with the speeds of both to see if you can come close and use the neck pickup with the volume backed off or turn down the gain. I have not tried this , but when you mention speed this was were my thoughts went.

Being a keyboard player and having owned and played plastic portable organs and Hammonds since the early 1970's through leslies it sounds to me like he had the top treble horn disabled and is playing with the bottom rotor engaged.

Balance is by far my favorite Van Halen record in the entire catalogue.

Stereo spead maybe, try small delay 5-14ms 100 wet on one of the channels.

This solo was his normal rig with a leslie cab added in the studio. Live he had a unit that produced that sound. His typical balance rig which was the w/d/w with micropitch, delay on each side and then the leslie added.

Stereo rig with a tape delay feeding the right channel. Sounds like there is both a slight delay and decay on the right channel. Just enough to add a lag and separation. Just a wild guess. This has always been one of my favorite EVH solos. As someone that is not a HUGE Van Halen fan. yeah I have always dug this solo. I like them just fine, just not as much as many out there. Total respect to EVH though.

Talk to Johnny Beane. He seems to know everything about EVH.

Loved this video. Not Enough is my favorite V.H. song. I've never tried to recreate the effects though. Have a hard enough time coming up with my own sounds. I'll be following along to see if anyone has come close to nailing it though.

Just a wild guess as I was listening to this video on my tablet... How about throwing a flanger and or a phaser into the mix?